/*
*  Copyright 2019-2020 Zheng Jie
*
*  Licensed under the Apache License, Version 2.0 (the "License");
*  you may not use this file except in compliance with the License.
*  You may obtain a copy of the License at
*
*  http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*/
package me.zhengjie.service.impl;

import me.zhengjie.domain.ReturnList;
import me.zhengjie.exception.EntityExistException;
import me.zhengjie.utils.ValidationUtil;
import me.zhengjie.utils.FileUtil;
import lombok.RequiredArgsConstructor;
import me.zhengjie.repository.ReturnListRepository;
import me.zhengjie.service.ReturnListService;
import me.zhengjie.service.dto.ReturnListDto;
import me.zhengjie.service.dto.ReturnListQueryCriteria;
import me.zhengjie.service.mapstruct.ReturnListMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import me.zhengjie.utils.PageUtil;
import me.zhengjie.utils.QueryHelp;
import java.util.List;
import java.util.Map;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.LinkedHashMap;

/**
* @website https://el-admin.vip
* @description 服务实现
* @author ...
* @date 2020-11-08
**/
@Service
@RequiredArgsConstructor
public class ReturnListServiceImpl implements ReturnListService {

    private final ReturnListRepository returnListRepository;
    private final ReturnListMapper returnListMapper;

    @Override
    public Map<String,Object> queryAll(ReturnListQueryCriteria criteria, Pageable pageable){
        Page<ReturnList> page = returnListRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder),pageable);
        return PageUtil.toPage(page.map(returnListMapper::toDto));
    }

    @Override
    public List<ReturnListDto> queryAll(ReturnListQueryCriteria criteria){
        return returnListMapper.toDto(returnListRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder)));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public ReturnListDto findById(Integer returnListId) {
        ReturnList returnList = returnListRepository.findById(returnListId).orElseGet(ReturnList::new);
        ValidationUtil.isNull(returnList.getReturnListId(),"ReturnList","returnListId",returnListId);
        return returnListMapper.toDto(returnList);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public ReturnListDto create(ReturnList resources) {
        if(returnListRepository.findByBorrowListId(resources.getBorrowListId()) != null){
            throw new EntityExistException(ReturnList.class,"borrow_list_id",resources.getBorrowListId().toString());
        }
        return returnListMapper.toDto(returnListRepository.save(resources));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(ReturnList resources) {
        ReturnList returnList = returnListRepository.findById(resources.getReturnListId()).orElseGet(ReturnList::new);
        ValidationUtil.isNull( returnList.getReturnListId(),"ReturnList","id",resources.getReturnListId());
        ReturnList returnList1 = returnListRepository.findByBorrowListId(resources.getBorrowListId());
        if(returnList1 != null && !returnList1.getReturnListId().equals(returnList.getReturnListId())){
            throw new EntityExistException(ReturnList.class,"borrow_list_id",resources.getBorrowListId().toString());
        }
        returnList.copy(resources);
        returnListRepository.save(returnList);
    }

    @Override
    public void deleteAll(Integer[] ids) {
        for (Integer returnListId : ids) {
            returnListRepository.deleteById(returnListId);
        }
    }

    @Override
    public void download(List<ReturnListDto> all, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (ReturnListDto returnList : all) {
            Map<String,Object> map = new LinkedHashMap<>();
            map.put("真实图书编号 ", returnList.getRealBookId());
            map.put("还书时间 ", returnList.getReturnTime());
            map.put("读者编号 ", returnList.getReaderId());
            map.put("借书编号 ", returnList.getBorrowListId());
            map.put("还书方式 0:自还 1:快递 2:面对面 ", returnList.getReturnLibraryMode());
            map.put("是否启用 1启用 0未启用", returnList.getIsEnable());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }
}